Natural Bully Barbells (Pack of 10) 10 pack of Redbarn Natural Bully Barbells Redbarn Bully Barbells are made of natural beef muscle and are designed to stand up to hours of chewing These single ingredient chews are twisted to provide durability and help reduce your dog's stress levels by offering a tough chew Natural chews like our barbells help to maintain dogs' healthy smiles Our great rawhide alternatives contain no grains, glutens, artificial colors, flavors or preservatives